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Linear and Angular Velocity Calculator

Linear Velocity Formula:

\[ V = \omega \times r \]

rad/s
m

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1. What is a Linear and Angular Velocity Calculator?

Definition: This calculator converts between angular velocity (rotational speed) and linear velocity (straight-line speed) using the radius of rotation.

Purpose: It helps engineers, physicists, and technicians understand the relationship between rotational and linear motion in systems like wheels, gears, and turbines.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ V = \omega \times r \]

Where:

Explanation: The linear speed at any point on a rotating object equals the angular speed multiplied by the distance from the rotation axis.

3. Importance of Velocity Conversion

Details: Understanding this relationship is crucial for designing mechanical systems, calculating belt speeds, determining gear ratios, and analyzing rotational dynamics.

4. Using the Calculator

Tips: Enter the angular velocity in radians per second and the radius in meters. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How do I convert RPM to rad/s?
A: Multiply RPM by 2π/60 (1 RPM = 0.10472 rad/s).

Q2: Does this work for any rotating object?
A: Yes, as long as you use the correct radius from the axis of rotation to the point of interest.

Q3: What if I know linear velocity and need angular velocity?
A: Rearrange the formula: ω = V/r.

Q4: Why is radius important in this calculation?
A: Points farther from the axis move faster than points closer to the axis at the same angular velocity.

Q5: Can I use different units?
A: Yes, but all units must be consistent (e.g., if radius is in cm, velocity will be in cm/s).

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